Google Gemini 4 Hydrogen rolls out in search worldwide

Google announced the introduction of Hydrogen to Search on November 12, 2026. Gemini 4 Hydrogen is available to all Search users worldwide. The announcement does not specify the exact release time or time zone.

The information in this article was checked against Google's announcement and Help Center as of November 14, 2026.

Google has introduced Hydrogen to Search

Google said it has added Gemini 4 Hydrogen to Search. It explained that search answers will include more images and structured responses. It also said it would expand comparison tables and personalized tools. These are the changes described in the Google Search announcement.

The announcement includes changes to how answers are displayed. Comparison tables are a format for presenting comparative information in search results. However, Google did not disclose which formats appear for which questions.

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Google announced Gemini 4 Hydrogen for all search users worldwide.AI-generated image

Search is available worldwide, while the app has separate selection conditions

Google said Search availability covers all users worldwide. No separate rollout schedule for Korea has been confirmed. The verified wording in this announcement also does not include detailed conditions for Korean-language support.

The model usage conditions for Google Search and the Gemini app must be distinguished. The Gemini app Help Center explains that Hydrogen may be used for questions that require more reasoning. The same guidance states that turning off automatic model selection makes the app use Flash-Lite for all responses.

There is no basis for applying the app's explanation of automatic model selection directly to Search. The conditions under which Search calls Hydrogen have not been disclosed. API eligibility and detailed usage conditions in Korea must also be checked in separate documentation.

Model pricing is public, but Search usage limits are not

Google's announced model pricing treats input and output separately. Input is the content sent to the model, and output is the content the model generates. Tokens are the units used to process this content and calculate charges.

This pricing was provided in the model introduction announcement on November 12, 2026. Context is the amount of information the model can handle at one time. The context limit and the amount that can be used per day are different measures.

These token prices should not be interpreted as fees for ordinary Search use. The verified pricing text does not specify a per-search charge. Daily usage limits for Hydrogen in Search have not been disclosed either.

Performance scores are independent measurements by Artificial Analysis

Artificial Analysis is the organization behind the verified Intelligence Index scores. High and Xhigh are separate evaluation entries. The scores were not presented as direct measurements of response quality in Google Search itself.

The scores appear on the High evaluation page and the Xhigh evaluation page, respectively. Google's description of changes to Search features should be read separately from the external evaluation scores. Which evaluation configuration applies to Search has not been confirmed.

The release time and extent of existing model replacement are undisclosed

The announcement alone does not establish the detailed scope of Hydrogen's deployment in Search. The statement that it is available worldwide does not establish that every search request uses the same model. The following items were not confirmed in the official announcement.

• The exact release time and time zone
• The specific model selection conditions for using Hydrogen in Search
• Daily usage limits for Hydrogen in Search
• Whether it has completely replaced the existing search models

The announcement date is confirmed as November 12, 2026. Without an exact time and time zone, it cannot be converted to Korean time. The time when the announcement was detected in a feed must also be distinguished from the actual release time.

In Korea, check the AI Mode display and what the pricing applies to

To use it in Korea, first check whether AI Mode appears on the search screen. The Google Search Help Center explains how to enter a question in the search box and then select AI Mode. This access path alone does not identify the model used for an individual response.

1. Open Google Search.
2. Enter a question in the search box.
3. Select AI Mode on the search screen.

Detailed support conditions for Korea and the Korean language must be checked in the Search Help Center. If you use the Gemini app, check the app's automatic model selection settings separately. When checking costs, distinguish between the terms of Search use and token-based model pricing.